APA (7th ed.) Citation

Gibbons, A. B., Kohut, J. J., & Weiss, M. P. (1975). Geologic map of the New Richmond quadrangle, Kentucky-Ohio. U.S. Geologic Survey.

Chicago Style (17th ed.) Citation

Gibbons, Anthony B., Joseph J. Kohut, and Malcolm P. Weiss. Geologic Map of the New Richmond Quadrangle, Kentucky-Ohio. Reston, Va.: U.S. Geologic Survey, 1975.

MLA (9th ed.) Citation

Gibbons, Anthony B., et al. Geologic Map of the New Richmond Quadrangle, Kentucky-Ohio. U.S. Geologic Survey, 1975.